/*
 * Licensed to Elasticsearch B.V. under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch B.V. licenses this file to you under
 * the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package co.elastic.clients.elasticsearch._helpers.esql.jdbc;

import java.sql.SQLException;
import java.util.List;

interface Cursor {

    List<JdbcColumnInfo> columns();

    default int columnSize() {
        return columns().size();
    }

    boolean next() throws SQLException;

    Object column(int column);

    /**
     * Number of rows that this cursor has pulled back from the
     * server in the current batch.
     */
    int batchSize();

    void close() throws SQLException;

    List<String> warnings();

    void clearWarnings();
}
